Finding the Fourth Proportional to 85,564.24, 128,315.64 and 32,947.28
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Solution
The fourth proportional to 85,564.24, 128,315.64 and 32,947.28 is: 49,409.09
Step by Step Solution
- Step 1: Write the proportion equation
85,564.24 : 128,315.64 = 32,947.28 : x - Step 2: Convert to fraction form
85,564.24/128,315.64 = 32,947.28/x - Step 3: Cross multiply
85,564.24x = 128,315.64 × 32,947.28 - Step 4: Simplify right side
85,564.24x = 4,227,651,319.46 - Step 5: Solve for x
x = 4,227,651,319.46/85,564.24 - Step 6: Final answer
x = 49,409.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.